NASA astronaut Don Pettit captured two amazing videos of the auroras from his unique perch above Earth last week.

A striking time-lapse video features the ISS flying above cities at night before passing over a stunning aurora.

The nominee for NASA's top job is outlining his vision for space exploration, highlighting Mars. President Donald Trump ...

A Russian spacecraft safely delivered an American astronaut Jonathan Kim and two Russian cosmonauts to the International ...

Lunar Outpost plans to ensure its LTV can not only endure the moon’s harsh, two-week long lunar nights, but continue ...

The craft carrying astronaut Jonny Kim and two Russian cosmonauts docked with the space station. They're scheduled for an ...

NASA astronaut Jonny Kim and Russian cosmonauts Sergey Ryzhikov and Alexey Zubritsky entered the ISS after a successful ...

NASA photographer Josh Valcarcel captured Zena Cardman in a pose evocative of one of the first female astronaut's portraits.

NASA astronaut Butch Wilmore revealed that the Boeing Starliner almost had to abort its attempt to dock to the International ...

Williams, a native of Needham, MA, and astronaut Butch Wilmore recently returned to Earth after a much- longer-than-planned ...

Space travel presents unique physiological and psychological challenges for astronauts, including muscle weakening, bone loss ...

Barry "Butch" Wilmore and Sunita "Suni" Williams had to stay at the International Space Station for nine months after their ...